From 1015a1b1750e578868a96d812d388d3c65d7faaf Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Mon, 18 Jul 2016 17:02:57 +0800 Subject: drm/amdgpu: implement vi ih check/pre/post_soft_reset MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Chunming Zhou Reviewed-by: Christian König Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/tonga_ih.c | 49 +++++++++++++++++++++++++++++++++-- 1 file changed, 47 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/tonga_ih.c') diff --git a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c index c92055805a45..d127d59f953a 100644 --- a/drivers/gpu/drm/amd/amdgpu/tonga_ih.c +++ b/drivers/gpu/drm/amd/amdgpu/tonga_ih.c @@ -373,10 +373,10 @@ static int tonga_ih_wait_for_idle(void *handle) return -ETIMEDOUT; } -static int tonga_ih_soft_reset(void *handle) +static int tonga_ih_check_soft_reset(void *handle) { - u32 srbm_soft_reset = 0; struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 srbm_soft_reset = 0; u32 tmp = RREG32(mmSRBM_STATUS); if (tmp & SRBM_STATUS__IH_BUSY_MASK) @@ -384,6 +384,48 @@ static int tonga_ih_soft_reset(void *handle) SOFT_RESET_IH, 1); if (srbm_soft_reset) { + adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang = true; + adev->irq.srbm_soft_reset = srbm_soft_reset; + } else { + adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang = false; + adev->irq.srbm_soft_reset = 0; + } + + return 0; +} + +static int tonga_ih_pre_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang) + return 0; + + return tonga_ih_hw_fini(adev); +} + +static int tonga_ih_post_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + + if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang) + return 0; + + return tonga_ih_hw_init(adev); +} + +static int tonga_ih_soft_reset(void *handle) +{ + struct amdgpu_device *adev = (struct amdgpu_device *)handle; + u32 srbm_soft_reset; + + if (!adev->ip_block_status[AMD_IP_BLOCK_TYPE_IH].hang) + return 0; + srbm_soft_reset = adev->irq.srbm_soft_reset; + + if (srbm_soft_reset) { + u32 tmp; + tmp = RREG32(mmSRBM_SOFT_RESET); tmp |= srbm_soft_reset; dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); @@ -427,7 +469,10 @@ const struct amd_ip_funcs tonga_ih_ip_funcs = { .resume = tonga_ih_resume, .is_idle = tonga_ih_is_idle, .wait_for_idle = tonga_ih_wait_for_idle, + .check_soft_reset = tonga_ih_check_soft_reset, + .pre_soft_reset = tonga_ih_pre_soft_reset, .soft_reset = tonga_ih_soft_reset, + .post_soft_reset = tonga_ih_post_soft_reset, .set_clockgating_state = tonga_ih_set_clockgating_state, .set_powergating_state = tonga_ih_set_powergating_state, }; -- cgit